If Biden 'gets in... your 401(k)s will go to hell': Trump

"If he gets in, you will have a depression the likes of which you've never seen. Your 401(k)s will go to hell, and it'll be a very very sad day for this country," Trump said.

Biden, meanwhile, struck a more conciliatory tone.

"I'm an American president. I represent all of you. Whether you voted for me or against me, I'm going to make sure you're represented. I'm going to give you hope," Biden said, answering Welker's same question.